if1632/builtin.c

   1 /*
   2  * Built-in modules
   3  *
   4  * Copyright 1996 Alexandre Julliard
   5  */
   6
   7 #include <assert.h>
   8 #include <ctype.h>
   9 #include <string.h>
  10 #include "windows.h"
  11 #include "gdi.h"
  12 #include "global.h"
  13 #include "module.h"
  14 #include "miscemu.h"
  15 #include "neexe.h"
  16 #include "stackframe.h"
  17 #include "user.h"
  18 #include "stddebug.h"
  19 #include "debug.h"
  20
  21 /* Built-in modules descriptors */
  22 /* Don't change these structures! (see tools/build.c) */
  23
  24 typedef struct
  25 {
  26     const BYTE *code_start;        /* 32-bit address of DLL code */
  27     const BYTE *data_start;        /* 32-bit address of DLL data */
  28 } WIN16_DESCRIPTOR;
  29
  30 typedef struct
  31 {
  32     int                 base;       /* Ordinal base */
  33     int                 size;       /* Number of functions */
  34     const void         *code_start; /* Start of DLL code */
  35     const void        **functions;  /* Pointer to functions table */
  36     const char * const *names;      /* Pointer to names table */
  37 } WIN32_DESCRIPTOR;
  38
  39 typedef struct
  40 {
  41     const char *name;              /* DLL name */
  42     void       *module_start;      /* 32-bit address of the module data */
  43     int         module_size;       /* Size of the module data */
  44     union
  45     {
  46         WIN16_DESCRIPTOR win16;    /* Descriptor for Win16 DLL */
  47         WIN32_DESCRIPTOR win32;    /* Descriptor for Win32 DLL */
  48     } u;
  49 } DLL_DESCRIPTOR;
  50
  51 typedef struct
  52 {
  53     const DLL_DESCRIPTOR *descr;   /* DLL descriptor */
  54     int                   flags;   /* flags (see below) */
  55 } BUILTIN_DLL;
  56
  57
  58 /* DLL flags */
  59 #define DLL_FLAG_NOT_USED    0x01  /* Use original Windows DLL if possible */
  60 #define DLL_FLAG_ALWAYS_USED 0x02  /* Always use built-in DLL */
  61 #define DLL_FLAG_WIN32       0x04  /* DLL is a Win32 DLL */
  62
  63 /* 16-bit DLLs */
  64
  65 extern const DLL_DESCRIPTOR KERNEL_Descriptor;
  66 extern const DLL_DESCRIPTOR USER_Descriptor;
  67 extern const DLL_DESCRIPTOR GDI_Descriptor;
  68 extern const DLL_DESCRIPTOR WIN87EM_Descriptor;
  69 extern const DLL_DESCRIPTOR MMSYSTEM_Descriptor;
  70 extern const DLL_DESCRIPTOR SHELL_Descriptor;
  71 extern const DLL_DESCRIPTOR SOUND_Descriptor;
  72 extern const DLL_DESCRIPTOR KEYBOARD_Descriptor;
  73 extern const DLL_DESCRIPTOR WINSOCK_Descriptor;
  74 extern const DLL_DESCRIPTOR STRESS_Descriptor;
  75 extern const DLL_DESCRIPTOR SYSTEM_Descriptor;
  76 extern const DLL_DESCRIPTOR TOOLHELP_Descriptor;
  77 extern const DLL_DESCRIPTOR MOUSE_Descriptor;
  78 extern const DLL_DESCRIPTOR COMMDLG_Descriptor;
  79 extern const DLL_DESCRIPTOR OLE2_Descriptor;
  80 extern const DLL_DESCRIPTOR OLE2CONV_Descriptor;
  81 extern const DLL_DESCRIPTOR OLE2DISP_Descriptor;
  82 extern const DLL_DESCRIPTOR OLE2NLS_Descriptor;
  83 extern const DLL_DESCRIPTOR OLE2PROX_Descriptor;
  84 extern const DLL_DESCRIPTOR OLECLI_Descriptor;
  85 extern const DLL_DESCRIPTOR OLESVR_Descriptor;
  86 extern const DLL_DESCRIPTOR COMPOBJ_Descriptor;
  87 extern const DLL_DESCRIPTOR STORAGE_Descriptor;
  88 extern const DLL_DESCRIPTOR WPROCS_Descriptor;
  89 extern const DLL_DESCRIPTOR DDEML_Descriptor;
  90 extern const DLL_DESCRIPTOR LZEXPAND_Descriptor;
  91 extern const DLL_DESCRIPTOR VER_Descriptor;
  92 extern const DLL_DESCRIPTOR W32SYS_Descriptor;
  93 extern const DLL_DESCRIPTOR WING_Descriptor;
  94
  95 /* 32-bit DLLs */
  96
  97 extern const DLL_DESCRIPTOR ADVAPI32_Descriptor;
  98 extern const DLL_DESCRIPTOR COMCTL32_Descriptor;
  99 extern const DLL_DESCRIPTOR COMDLG32_Descriptor;
 100 extern const DLL_DESCRIPTOR CRTDLL_Descriptor;
 101 extern const DLL_DESCRIPTOR OLE32_Descriptor;
 102 extern const DLL_DESCRIPTOR GDI32_Descriptor;
 103 extern const DLL_DESCRIPTOR KERNEL32_Descriptor;
 104 extern const DLL_DESCRIPTOR LZ32_Descriptor;
 105 extern const DLL_DESCRIPTOR MPR_Descriptor;
 106 extern const DLL_DESCRIPTOR NTDLL_Descriptor;
 107 extern const DLL_DESCRIPTOR SHELL32_Descriptor;
 108 extern const DLL_DESCRIPTOR USER32_Descriptor;
 109 extern const DLL_DESCRIPTOR VERSION_Descriptor;
 110 extern const DLL_DESCRIPTOR WINMM_Descriptor;
 111 extern const DLL_DESCRIPTOR WINSPOOL_Descriptor;
 112 extern const DLL_DESCRIPTOR WSOCK32_Descriptor;
 113
 114 /* Table of all built-in DLLs */
 115
 116 static BUILTIN_DLL BuiltinDLLs[] =
 117 {
 118     /* Win16 DLLs */
 119     { &KERNEL_Descriptor,   DLL_FLAG_ALWAYS_USED },
 120     { &USER_Descriptor,     DLL_FLAG_ALWAYS_USED },
 121     { &GDI_Descriptor,      DLL_FLAG_ALWAYS_USED },
 122     { &SYSTEM_Descriptor,   DLL_FLAG_ALWAYS_USED },
 123     { &WIN87EM_Descriptor,  DLL_FLAG_NOT_USED },
 124     { &SHELL_Descriptor,    0 },
 125     { &SOUND_Descriptor,    0 },
 126     { &KEYBOARD_Descriptor, 0 },
 127     { &WINSOCK_Descriptor,  0 },
 128     { &STRESS_Descriptor,   0 },
 129     { &MMSYSTEM_Descriptor, 0 },
 130     { &TOOLHELP_Descriptor, 0 },
 131     { &MOUSE_Descriptor,    0 },
 132     { &COMMDLG_Descriptor,  DLL_FLAG_NOT_USED },
 133     { &OLE2_Descriptor,     DLL_FLAG_NOT_USED },
 134     { &OLE2CONV_Descriptor, DLL_FLAG_NOT_USED },
 135     { &OLE2DISP_Descriptor, DLL_FLAG_NOT_USED },
 136     { &OLE2NLS_Descriptor,  DLL_FLAG_NOT_USED },
 137     { &OLE2PROX_Descriptor, DLL_FLAG_NOT_USED },
 138     { &OLECLI_Descriptor,   DLL_FLAG_NOT_USED },
 139     { &OLESVR_Descriptor,   DLL_FLAG_NOT_USED },
 140     { &COMPOBJ_Descriptor,  DLL_FLAG_NOT_USED },
 141     { &STORAGE_Descriptor,  DLL_FLAG_NOT_USED },
 142     { &WPROCS_Descriptor,   DLL_FLAG_ALWAYS_USED },
 143     { &DDEML_Descriptor,    DLL_FLAG_NOT_USED },
 144     { &LZEXPAND_Descriptor, 0 },
 145     { &VER_Descriptor,      0 },
 146     { &W32SYS_Descriptor,   0 },
 147     { &WING_Descriptor,     0 },
 148     /* Win32 DLLs */
 149     { &ADVAPI32_Descriptor, 0 },
 150     { &COMCTL32_Descriptor, DLL_FLAG_NOT_USED },
 151     { &COMDLG32_Descriptor, 0 },
 152     { &CRTDLL_Descriptor,   0 },
 153     { &OLE32_Descriptor,    DLL_FLAG_NOT_USED },
 154     { &GDI32_Descriptor,    0 },
 155     { &KERNEL32_Descriptor, DLL_FLAG_ALWAYS_USED },
 156     { &LZ32_Descriptor,     0 },
 157     { &MPR_Descriptor,      0 },
 158     { &NTDLL_Descriptor,    0 },
 159     { &SHELL32_Descriptor,  0 },
 160     { &USER32_Descriptor,   0 },
 161     { &VERSION_Descriptor,  0 },
 162     { &WINMM_Descriptor,    0 },
 163     { &WINSPOOL_Descriptor, 0 },
 164     { &WSOCK32_Descriptor,  0 },
 165     /* Last entry */
 166     { NULL, 0 }
 167 };
 168
 169   /* Ordinal number for interrupt 0 handler in WPROCS.DLL */
 170 #define FIRST_INTERRUPT_ORDINAL 100
 171
 172 /***********************************************************************
 173  *           BUILTIN_Init
 174  *
 175  * Load all built-in modules marked as 'always used'.
 176  */
 177 BOOL16 BUILTIN_Init(void)
 178 {
 179     BUILTIN_DLL *dll;
 180     NE_MODULE *pModule;
 181     WORD vector;
 182     HMODULE16 hModule;
 183
 184     for (dll = BuiltinDLLs; dll->descr; dll++)
 185         if (dll->flags & DLL_FLAG_ALWAYS_USED)
 186             if (!BUILTIN_LoadModule(dll->descr->name, TRUE)) return FALSE;
 187
 188     /* Set the USER and GDI heap selectors */
 189
 190     pModule      = MODULE_GetPtr( GetModuleHandle16( "USER" ));
 191     USER_HeapSel = (NE_SEG_TABLE( pModule ) + pModule->dgroup - 1)->selector;
 192     pModule      = MODULE_GetPtr( GetModuleHandle16( "GDI" ));
 193     GDI_HeapSel  = (NE_SEG_TABLE( pModule ) + pModule->dgroup - 1)->selector;
 194
 195     /* Initialize KERNEL.178 (__WINFLAGS) with the correct flags value */
 196
 197     hModule = GetModuleHandle16( "KERNEL" );
 198     MODULE_SetEntryPoint( hModule, 178, GetWinFlags() );
 199
 200     /* Initialize the real-mode selector entry points */
 201
 202     DOSMEM_InitExports( hModule );
 203
 204     /* Set interrupt vectors from entry points in WPROCS.DLL */
 205
 206     hModule = GetModuleHandle16( "WPROCS" );
 207     for (vector = 0; vector < 256; vector++)
 208     {
 209         FARPROC16 proc = MODULE_GetEntryPoint( hModule,
 210                                                FIRST_INTERRUPT_ORDINAL+vector);
 211         assert(proc);
 212         INT_SetHandler( vector, proc );
 213     }
 214
 215     return TRUE;
 216 }
 217
 218
 219 /***********************************************************************
 220  *           BUILTIN_LoadModule
 221  *
 222  * Load a built-in module. If the 'force' parameter is FALSE, we only
 223  * load the module if it has not been disabled via the -dll option.
 224  */
 225 HMODULE16 BUILTIN_LoadModule( LPCSTR name, BOOL16 force )
 226 {
 227     HMODULE16 hModule;
 228     NE_MODULE *pModule;
 229     BUILTIN_DLL *table;
 230     char dllname[16], *p;
 231
 232     /* Fix the name in case we have a full path and extension */
 233
 234     if ((p = strrchr( name, '\\' ))) name = p + 1;
 235     lstrcpyn32A( dllname, name, sizeof(dllname) );
 236     if ((p = strrchr( dllname, '.' ))) *p = '\0';
 237
 238     for (table = BuiltinDLLs; table->descr; table++)
 239         if (!lstrcmpi32A( table->descr->name, dllname )) break;
 240     if (!table->descr) return 0;
 241     if ((table->flags & DLL_FLAG_NOT_USED) && !force) return 0;
 242
 243     hModule = GLOBAL_CreateBlock( GMEM_MOVEABLE, table->descr->module_start,
 244                                   table->descr->module_size, 0,
 245                                   FALSE, FALSE, FALSE, NULL );
 246     if (!hModule) return 0;
 247     FarSetOwner( hModule, hModule );
 248
 249     dprintf_module( stddeb, "Built-in %s: hmodule=%04x\n",
 250                     table->descr->name, hModule );
 251     pModule = (NE_MODULE *)GlobalLock16( hModule );
 252     pModule->self = hModule;
 253
 254     if (pModule->flags & NE_FFLAGS_WIN32)
 255     {
 256         pModule->pe_module = (PE_MODULE *)table;
 257         table->flags |= DLL_FLAG_WIN32;
 258     }
 259     else  /* Win16 module */
 260     {
 261         const WIN16_DESCRIPTOR *descr = &table->descr->u.win16;
 262         int minsize;
 263
 264         /* Allocate the code segment */
 265
 266         SEGTABLEENTRY *pSegTable = NE_SEG_TABLE( pModule );
 267         pSegTable->selector = GLOBAL_CreateBlock(GMEM_FIXED, descr->code_start,
 268                                                  pSegTable->minsize, hModule,
 269                                                  TRUE, TRUE, FALSE, NULL );
 270         if (!pSegTable->selector) return 0;
 271         pSegTable++;
 272
 273         /* Allocate the data segment */
 274
 275         minsize = pSegTable->minsize ? pSegTable->minsize : 0x10000;
 276         minsize += pModule->heap_size;
 277         if (minsize > 0x10000) minsize = 0x10000;
 278         pSegTable->selector = GLOBAL_Alloc( GMEM_FIXED, minsize,
 279                                             hModule, FALSE, FALSE, FALSE );
 280         if (!pSegTable->selector) return 0;
 281         if (pSegTable->minsize) memcpy( GlobalLock16( pSegTable->selector ),
 282                                         descr->data_start, pSegTable->minsize);
 283         if (pModule->heap_size)
 284             LocalInit( pSegTable->selector, pSegTable->minsize, minsize );
 285     }
 286
 287     MODULE_RegisterModule( pModule );
 288     return hModule;
 289 }
 290
 291
 292 /***********************************************************************
 293  *           BUILTIN_GetEntryPoint16
 294  *
 295  * Return the ordinal and name corresponding to a CS:IP address.
 296  * This is used only by relay debugging.
 297  */
 298 LPCSTR BUILTIN_GetEntryPoint16( WORD cs, WORD ip, WORD *pOrd )
 299 {
 300     static char buffer[80];
 301     WORD ordinal, i, max_offset;
 302     register BYTE *p;
 303     NE_MODULE *pModule;
 304
 305     if (!(pModule = MODULE_GetPtr( FarGetOwner( GlobalHandle16(cs) ))))
 306         return NULL;
 307
 308     /* Search for the ordinal */
 309
 310     p = (BYTE *)pModule + pModule->entry_table;
 311     max_offset = 0;
 312     ordinal = 1;
 313     *pOrd = 0;
 314     while (*p)
 315     {
 316         switch(p[1])
 317         {
 318         case 0:    /* unused */
 319             ordinal += *p;
 320             p += 2;
 321             break;
 322         case 1:    /* code segment */
 323             i = *p;
 324             p += 2;
 325             while (i-- > 0)
 326             {
 327                 p++;
 328                 if ((*(WORD *)p <= ip) && (*(WORD *)p >= max_offset))
 329                 {
 330                     max_offset = *(WORD *)p;
 331                     *pOrd = ordinal;
 332                 }
 333                 p += 2;
 334                 ordinal++;
 335             }
 336             break;
 337         case 0xff: /* moveable (should not happen in built-in modules) */
 338             fprintf( stderr, "Built-in module has moveable entry\n" );
 339             ordinal += *p;
 340             p += 2 + *p * 6;
 341             break;
 342         default:   /* other segment */
 343             ordinal += *p;
 344             p += 2 + *p * 3;
 345             break;
 346         }
 347     }
 348
 349     /* Search for the name in the resident names table */
 350     /* (built-in modules have no non-resident table)   */
 351
 352     p = (BYTE *)pModule + pModule->name_table;
 353     while (*p)
 354     {
 355         p += *p + 1 + sizeof(WORD);
 356         if (*(WORD *)(p + *p + 1) == *pOrd) break;
 357     }
 358
 359     sprintf( buffer, "%.*s.%d: %.*s",
 360              *((BYTE *)pModule + pModule->name_table),
 361              (char *)pModule + pModule->name_table + 1,
 362              *pOrd, *p, (char *)(p + 1) );
 363     return buffer;
 364 }
 365
 366
 367 /***********************************************************************
 368  *           BUILTIN_GetEntryPoint32
 369  *
 370  * Return the name of the DLL entry point corresponding
 371  * to a relay entry point address. This is used only by relay debugging.
 372  */
 373 LPCSTR BUILTIN_GetEntryPoint32( void *relay )
 374 {
 375     static char buffer[80];
 376     BUILTIN_DLL *dll;
 377     const void **funcs;
 378     int i;
 379
 380     /* First find the module */
 381
 382     for (dll = BuiltinDLLs; dll->descr; dll++)
 383         if ((dll->flags & DLL_FLAG_WIN32) &&
 384             (dll->descr->u.win32.code_start <= relay) &&
 385             ((void *)dll->descr->u.win32.functions > relay))
 386             break;
 387     if (!dll->descr)
 388     {
 389         sprintf( buffer, "???.???: %08x", (UINT32)relay );
 390         return buffer;
 391     }
 392
 393     /* Now find the function */
 394
 395     relay = (BYTE *)relay - 11;  /* The relay entry point is 11 bytes long */
 396     funcs = dll->descr->u.win32.functions;
 397     for (i = 0; i < dll->descr->u.win32.size;i++) if (*funcs++ == relay) break;
 398     sprintf( buffer, "%s.%d: %s",
 399              dll->descr->name, i, dll->descr->u.win32.names[i] );
 400     return buffer;
 401 }
 402
 403
 404 /***********************************************************************
 405  *           BUILTIN_GetProcAddress32
 406  *
 407  * Implementation of GetProcAddress() for built-in Win32 modules.
 408  * FIXME: this should be unified with the real GetProcAddress32().
 409  */
 410 FARPROC32 BUILTIN_GetProcAddress32( NE_MODULE *pModule, LPCSTR function )
 411 {
 412     BUILTIN_DLL *dll = (BUILTIN_DLL *)pModule->pe_module;
 413     const WIN32_DESCRIPTOR *info = &dll->descr->u.win32;
 414
 415     if (!dll) return NULL;
 416
 417     if (HIWORD(function))  /* Find function by name */
 418     {
 419         int i;
 420
 421         dprintf_module( stddeb, "Looking for function %s in %s\n",
 422                         function, dll->descr->name );
 423         for (i = 0; i < info->size; i++)
 424             if (info->names[i] && !strcmp( function, info->names[i] ))
 425                 return (FARPROC32)info->functions[i];
 426     }
 427     else  /* Find function by ordinal */
 428     {
 429         WORD ordinal = LOWORD(function);
 430         dprintf_module( stddeb, "Looking for ordinal %d in %s\n",
 431                         ordinal, dll->descr->name );
 432         if (ordinal && ordinal < info->size)
 433             return (FARPROC32)info->functions[ordinal - info->base];
 434     }
 435     return NULL;
 436 }
 437
 438
 439 /**********************************************************************
 440  *          BUILTIN_DefaultIntHandler
 441  *
 442  * Default interrupt handler.
 443  */
 444 void BUILTIN_DefaultIntHandler( CONTEXT *context )
 445 {
 446     WORD ordinal;
 447     STACK16FRAME *frame = CURRENT_STACK16;
 448     BUILTIN_GetEntryPoint16( frame->entry_cs, frame->entry_ip, &ordinal );
 449     INT_BARF( context, ordinal - FIRST_INTERRUPT_ORDINAL );
 450 }
 451
 452
 453 /***********************************************************************
 454  *           BUILTIN_ParseDLLOptions
 455  *
 456  * Set runtime DLL usage flags
 457  */
 458 BOOL16 BUILTIN_ParseDLLOptions( const char *str )
 459 {
 460     BUILTIN_DLL *dll;
 461     const char *p;
 462
 463     while (*str)
 464     {
 465         while (*str && isspace(*str)) str++;
 466         if (!*str) return TRUE;
 467         if ((*str != '+') && (*str != '-')) return FALSE;
 468         str++;
 469         if (!(p = strchr( str, ',' ))) p = str + strlen(str);
 470         while ((p > str) && isspace(p[-1])) p--;
 471         if (p == str) return FALSE;
 472         for (dll = BuiltinDLLs; dll->descr; dll++)
 473         {
 474             if (!lstrncmpi32A( str, dll->descr->name, (int)(p - str) ))
 475             {
 476                 if (str[-1] == '-')
 477                 {
 478                     if (dll->flags & DLL_FLAG_ALWAYS_USED) return FALSE;
 479                     dll->flags |= DLL_FLAG_NOT_USED;
 480                 }
 481                 else dll->flags &= ~DLL_FLAG_NOT_USED;
 482                 break;
 483             }
 484         }
 485         if (!dll->descr) return FALSE;
 486         str = p;
 487         while (*str && (isspace(*str) || (*str == ','))) str++;
 488     }
 489     return TRUE;
 490 }
 491
 492
 493 /***********************************************************************
 494  *           BUILTIN_PrintDLLs
 495  *
 496  * Print the list of built-in DLLs that can be disabled.
 497  */
 498 void BUILTIN_PrintDLLs(void)
 499 {
 500     int i;
 501     BUILTIN_DLL *dll;
 502
 503     for (i = 0, dll = BuiltinDLLs; dll->descr; dll++)
 504     {
 505         if (!(dll->flags & DLL_FLAG_ALWAYS_USED))
 506             fprintf( stderr, "%-9s%c", dll->descr->name,
 507                      ((++i) % 8) ? ' ' : '\n' );
 508     }
 509     fprintf(stderr,"\n");
 510     exit(1);
 511 }